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https://www.readbyqxmd.com/read/28449182/validation-of-a-nomogram-for-selecting-patients-for-chemotherapy-after-d2-gastrectomy-for-cancer
#1
Z-X Wang, G-X Li, Z-W Zhou, Z-P Huang, F Wang, R-H Xu
BACKGROUND: According to some guidelines for the management of gastric cancer, adjuvant chemotherapy is recommended for patients with pT3-4 or node-positive disease. The aim of this study was to define low- and high-risk groups in terms of survival, and to predict the benefit of adjuvant fluoropyrimidine plus oxaliplatin (F-OX) chemotherapy. METHODS: Patients with pT3-4 or node-positive gastric cancer after gastrectomy with D2 lymphadenectomy between 2000 and 2013 were included...
April 27, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28448719/use-of-native-aquatic-macrophytes-in-the-reduction-of-organic-matter-from-dairy-effluents
#2
Rita de Cássia Souza de Queiroz Lopes, Rodrigo Santos Andrade, Isadora Rosário Dantas, Vinícius de Souza Ribeiro, Luciano Brito Rodrigues Neto, José Adolfo de Almeida Neto
Considering the diversity and the unexplored potential of regional aquatic flora, this study aimed to identify and analyze the potential of native aquatic macrophytes to reduce the organic matter of dairy wastewater using experimental constructed wetlands. The dairy wastewater had an initial average COD of 7,414.63 mg/L and then was diluted to 3,133.16 mg/L (D1) and to 2,506.53 mg/L (D2). Total solids, COD, temperature, and pH analyses were performed, and the BOD was estimated from the COD values. The best performance in the reduction of the organic matter was observed for Polygonum sp...
April 27, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28447063/lymphadenectomy-how-to-do-it
#3
REVIEW
Simone Giacopuzzi, Maria Bencivenga, Chiara Cipollari, Jacopo Weindelmayer, Giovanni de Manzoni
According to the more recent European guidelines, the D2 lymphadenectomy is considered the standard for curative intent treatment of patients with gastric cancer. Although, the surgical definition of D2 dissection and its technical aspects had been learned from Eastern surgeons in the past decades, some variations in the approach to D2 lymphadenectomy by European surgeons were detectable in randomized clinical trials dealing with lymphadenectomy. Despite in more recent years an improvement in surgical quality has been reported in European series, some differences in the practice of D2 dissection are thought to persist...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28447050/prognostic-impact-of-nodal-status-and-therapeutic-implications
#4
REVIEW
Katja Ott, Susanne Blank, Laura Ruspi, Margit Bauer, Leila Sisic, Thomas Schmidt
The prognostic impact of lymph node (LN) metastases in gastric cancer is generally accepted. In primarily resected patients the pN-category and LN ratio are independent prognostic factors. Number of involved LNs, number of resected LNs, lymphangiosis and micrometastases also influence the prognosis significantly. To guarantee a proper D2 lymphadenectomy (LAD) at least 25 LNs according to the German S3 guidelines for the treatment of gastric cancer should be removed. Also in neoadjuvantly treated patients the ypN-category and LN ratio play an important prognostic role, despite the fact that UICC staging system was development based only on primarily resected patients...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28446664/analysis-of-competing-hiv-1-splice-donor-sites-uncovers-a-tight-cluster-of-splicing-regulatory-elements-within-exon-2-2b
#5
Anna-Lena Brillen, Lara Walotka, Frank Hillebrand, Lisa Müller, Marek Widera, Stephan Theiss, Heiner Schaal
The HIV-1 accessory protein Vif is essential for viral replication by counteracting the host restriction factor APOBEC3G (A3G), and balanced levels of both proteins are required for efficient viral replication. Non-coding exons 2/2b contain the Vif start codon between their alternatively used splice donors 2 and 2b (D2 and D2b). For the vif mRNA, intron 1 must be removed, while intron 2 must be retained. Thus, splice acceptor 1 (A1) must be activated by U1 snRNP binding to either D2 or D2b, while splicing at D2 or D2b must be prevented...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28445972/the-prognostic-value-of-d-dimer-levels-in-endometrial-cancer-patients-treated-with-intensity-modulated-radiation-therapy
#6
Xiaojing Yang, Hanru Ren, Yi Sun, Lihua Zhang, Xinmiao Yang, Hongling Li, Yuhui Shao, Jie Fu
Explain the important role of plasma D-dimer in cancers. Plasma D-dimer is increased in various tumors. However, the predictive value of plasma D-dimer is unclear. This study is aimed to evaluate the prognostic value of the D-dimer level in patients managed with intensity-modulated radiation for endometrial cancer. The D-dimer levels of forty patients with endometrial cancer were assessed before (D1) and after (D2) intensity-modulated radiation therapy (IMRT), respectively. The D-dimer level changes (ΔD) were defined as D2 minus D1...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445758/bilayer-interactions-among-unsaturated-phospholipids-sterols-and-ceramide
#7
J Peter Slotte, Tomokazu Yasuda, Oskar Engberg, Md Abdullah Al Sazzad, Victor Hautala, Thomas K M Nyholm, Michio Murata
Using differential scanning calorimetry and lifetime analysis of trans-parinaric acid fluorescence, we have examined how cholesterol and cholesteryl phosphocholine (CholPC) affect gel-phase properties of palmitoyl ceramide (PCer) in 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and 1,2-dioleyol-sn-glycero-3-phosphocholine (DOPC) bilayers. By (2)H NMR, we also measured fluid-phase interactions among these lipids using deuterated analogs of POPC, PCer, and cholesterol. The PCer-rich gel phase in POPC bilayers (9:1 molar ratio of POPC to PCer) was partially and similarly dissolved (and thermostability decreased) by both cholesterol and CholPC (sterol was present equimolar to PCer, or in fourfold excess)...
April 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28443529/selective-attention-and-mismatch-negativity-in-antipsychotic-na%C3%A3-ve-first-episode-schizophrenia-patients-before-and-after-6-months-of-antipsychotic-monotherapy
#8
B Oranje, B Aggernaes, H Rasmussen, B H Ebdrup, B Y Glenthøj
BACKGROUND: Attention deficits have been frequently reported in schizophrenia. It has been suggested that treatment with second-generation antipsychotics can ameliorate these deficits. In this study, the influence of 6 months treatment with quetiapine, a compound with less affinity for dopamine D2 receptors than for serotonergic 5-HT2A receptors, on electrophysiological parameters of attention was investigated in a group of antipsychotic-naïve, first-episode schizophrenia patients compared with a group of age- and gender-matched healthy controls...
April 26, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28443355/investigational-dopamine-antagonists-for-the-treatment-of-schizophrenia
#9
Sheng-Min Wang, Changsu Han, Soo-Jung Lee, Tae-Youn Jun, Ashwin A Patkar, Prakash S Masand, Chi-Un Pae
Introduction Schizophrenia is a debilitating illness with a chronic impact on social function and daily living. Although various antipsychotics are available, there are still many challenges and unmet needs. Thus, many compounds with diverse mechanisms have been investigated, but all approved antipsychotics still require interactions with dopamine D2 receptors. Areas Covered We searched for investigational drugs using the key words 'dopamine' and 'schizophrenia' in American and European clinical trial registers (clinicaltrials...
April 26, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28443089/japanese-encephalitis-virus-exploits-dopamine-d2-receptor-phospholipase-c-to-target-dopaminergic-human-neuronal-cells
#10
Yogy Simanjuntak, Jian-Jong Liang, Yi-Ling Lee, Yi-Ling Lin
Despite the availability of vaccines for Japanese encephalitis virus (JEV), the re-emerging virus remains a clinically important pathogen that causes acute encephalitis and permanent neuropsychiatric sequels. JEV highly targets dopaminergic neuron-rich brain regions including the thalamus and midbrain. The molecular mechanism contributing to the high susceptibility of these particular brain regions remains largely unclear. This study addressed whether this tissue tropism of JEV is associated with signaling of dopaminergic neurons...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28442959/evaluation-of-different-doses-of-dexmedetomidine-alone-versus-the-combination-of-dexmedetomidine-and-fentanyl-in-sedation-during-awake-fiberoptic-intubation-in-oral-cancer-surgery-patients-a-prospective-randomized-double-blind-clinical-trial
#11
Mohamed Elsayed Hassan, Essam Mahran
BACKGROUND: Awake fiberoptic intubation (AFOI) is one of the principal techniques in the management of difficult airway in oral cancer surgery. We hypothesized that the addition of a small dose of fentanyl could improve the sedative criteria of dexmedetomidine during AFOI technique, without the need to increase the dose of dexmedetomidine which may be associated with airway compromise. PATIENTS AND METHODS: One hundred and fifty American Society of Anesthesiologists physical status 1 and 2 patients planned for AFOI for oral cancer surgery patients were allocated into three groups (fifty patients each)...
April 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28442581/sigma-receptor-effects-of-n-substituted-benztropine-analogs-implications-for-antagonism-of-cocaine-self-administration
#12
Takato Hiranita, Weimin C Hong, Theresa Kopajtic, Jonathan L Katz
Several N-substituted benztropine (BZT) analogs are atypical dopamine transport inhibitors as they have affinity for the dopamine transporter (DAT), but have minimal cocaine-like pharmacological effects and can block numerous effects of cocaine including its self-administration. Among these compounds, N-methyl (AHN1-055), N-allyl (AHN2-005), and N-butyl (JHW007) analogs of 3α-[bis(4'-fluorophenyl)methoxy]-tropane were more potent in antagonizing self-administration of cocaine and d-methamphetamine than in decreasing food-maintained responding...
April 25, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28442499/absorption-distribution-metabolism-and-excretion-of-the-oral-prostaglandin-d2-receptor-2-dp2-antagonist-fevipiprant-qaw039-in-healthy-volunteers-and-in-vitro
#13
David Pearson, H Markus Weiss, Yi Jin, Jan Jaap van Lier, Veit J Erpenbeck, Ulrike Glaenzel, Peter End, Ralph Woessner, Fabian Eggimann, Gian Camenisch
Fevipiprant is a novel oral prostaglandin D2 receptor 2 (DP2; also known as CRTh2) antagonist, which is currently in development for the treatment of severe asthma and atopic dermatitis. We investigated the absorption, distribution, metabolism, and excretion properties of fevipiprant in healthy subjects after a single 200 mg oral dose of [(14)C]-radiolabeled fevipiprant. Fevipiprant and metabolites were analyzed by liquid chromatography coupled to tandem mass spectrometry and radioactivity measurements, and mechanistic in vitro studies were performed to investigate clearance pathways and covalent plasma protein binding...
April 25, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28440817/effects-of-dopamine-d2-d3-receptor-antagonism-on-human-planning-and-spatial-working-memory
#14
M Naef, U Müller, A Linssen, L Clark, T W Robbins, C Eisenegger
Psychopharmacological studies in humans suggest important roles for dopamine (DA) D2 receptors in human executive functions, such as cognitive planning and spatial working memory (SWM). However, studies that investigate an impairment of such functions using the selective DA D2/3 receptor antagonist sulpiride have yielded inconsistent results, perhaps because relatively low doses were used. We believe we report for the first time, the effects of a higher (800 mg p.o.) single dose of sulpiride as well as of genetic variation in the DA receptor D2 gene (DA receptor D2 Taq1A polymorphism), on planning and working memory...
April 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28440810/naltrexone-modulates-dopamine-release-following-chronic-but-not-acute-amphetamine-administration-a-translational-study
#15
N Jayaram-Lindström, J Guterstam, J Häggkvist, M Ericson, T Malmlöf, B Schilström, C Halldin, S Cervenka, T Saijo, A-L Nordström, J Franck
The opioid antagonist naltrexone has been shown to attenuate the subjective effects of amphetamine. However, the mechanisms behind this modulatory effect are currently unknown. We hypothesized that naltrexone would diminish the striatal dopamine release induced by amphetamine, which is considered an important mechanism behind many of its stimulant properties. We used positron emission tomography and the dopamine D2-receptor radioligand [(11)C]raclopride in healthy subjects to study the dopaminergic effects of an amphetamine injection after pretreatment with naltrexone or placebo...
April 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28439090/slc10a4-regulates-ige-mediated-mast-cell-degranulation-in-vitro-and-mast-cell-mediated-reactions-in-vivo
#16
Hanna Pettersson, Behdad Zarnegar, Annika Westin, Viktor Persson, Christiane Peuckert, Jörgen Jonsson, Jenny Hallgren, Klas Kullander
Mast cells act as sensors in innate immunity and as effector cells in adaptive immune reactions. Here we demonstrate that SLC10A4, also referred to as the vesicular aminergic-associated transporter, VAAT, modifies mast cell degranulation. Strikingly, Slc10a4 (-/-) bone marrow-derived mast cells (BMMCs) had a significant reduction in the release of granule-associated mediators in response to IgE/antigen-mediated activation, whereas the in vitro development of mast cells, the storage of the granule-associated enzyme mouse mast cell protease 6 (mMCP-6), and the release of prostaglandin D2 and IL-6 were normal...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438452/muscle-damage-after-total-hip-arthroplasty-through-the-direct-anterior-approach-for-developmental-dysplasia-of-the-hip
#17
Masashi Kawasaki, Yukiharu Hasegawa, Toshiaki Okura, Satoshi Ochiai, Takayoshi Fujibayashi
BACKGROUND: Total hip arthroplasty (THA) through the direct anterior approach (DAA) is known to cause less muscle damage than other surgical approaches. However, more complex primary cases, such as developmental dysplasia of the hip (DDH), might often cause muscle damage. The objective of the present study was to clarify the muscle damage observed 1 year after THA through the DAA for DDH using magnetic resonance imaging. METHODS: We prospectively compared the muscle cross-sectional area (M-CSA) and fatty atrophy (FA) in muscles by magnetic resonance imaging and the Harris hip score before and at 1-year follow-up after THA through the DAA in 3 groups: 37 patients with Crowe group 1 DDH (D1), 13 patients with Crowe group 2 and 3 DDH (D2 + 3), and 12 patients with osteonecrosis as a control...
March 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28437260/early-postoperative-neuropathic-pain-assessed-by-the-dn4-score-predicts-an-increased-risk-of-persistent-postsurgical-neuropathic-pain
#18
Helene Beloeil, Barthelemy Sion, Chloe Rousseau, Pierre Albaladejo, Mathieu Raux, Frederic Aubrun, Valeria Martinez
BACKGROUND: Acute neuropathic pain can occur in the postoperative period but any link with persistent post-surgical neuropathic pain remains unclear. OBJECTIVES: The objectives of this study were to prospectively describe the incidence of acute post-surgical neuropathic pain in a large population using the DN4 (clinician administered) questionnaire and to confirm the hypothetical link between acute and persistent neuropathic pain at 2 months after surgery in a large population using the DN2 (self administered) questionnaire...
April 21, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28436559/dopamine-d1-or-d2-receptor-expressing-neurons-in-the-central-nervous-system
#19
Xiaoyan Wei, Tengfei Ma, Yifeng Cheng, Cathy C Y Huang, Xuehua Wang, Jiayi Lu, Jun Wang
Dopamine signals mainly through D1 receptors (D1Rs) and D2 receptors (D2Rs); D1R-expressing or D2R-expressing neurons contribute to distinct reward and addictive behaviors. Traditionally, transgenic mice expressing green fluorescent protein (GFP) under D1R or D2R promoters are used for fluorescent verification in electrophysiology studies, whereas Cre mice are employed for behavioral research. However, it is unknown whether the same neuronal populations are targeted in GFP and Cre mice. Additionally, while D1Rs and D2Rs are known to be expressed in different striatal neurons, their expression patterns outside the striatum remain unclear...
April 24, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28436040/synergistic-use-of-biochar-compost-and-plant-growth-promoting-rhizobacteria-for-enhancing-cucumber-growth-under-water-deficit-conditions
#20
Sajid M Nadeem, Muhammad Imran, Muhammad Naveed, Muhammad Y Khan, Maqshoof Ahmad, Zahir A Zahir, David E Crowley
BACKGROUND: Limited information is available about effectiveness of biochar with plant growth promoting rhizobacteria (PGPR) and compost. A greenhouse study was conducted to evaluate the effect of biochar in combination with compost and PGPR (Pseudomonas fluorescens) for alleviating water deficit stress. The inoculated and un-inoculated cucumber seeds were sown in soil treated with biochar, compost and biochar + compost. Three water levels [field capacity (D0), 75% field capacity (D1) and 50% field capacity (D2)] were maintained...
April 23, 2017: Journal of the Science of Food and Agriculture
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